Some good factories recycle water by pumping dirty water through a cleaning system, which purifies the water so that humans can drink it. Recycling water is beneficial because it prevents pollution of rivers and protects marine life. During a conversation about nature, Sky blamed humans for problems like global warming, saying it was their fault for not using resources judiciously and making the planet worse through global warming. The document provides answers to comprehension questions about recycling water and a conversation between Sky and an unnamed person about human culpability for environmental issues.